Femtosecond Amplifying and Harmonic Generation System for Ultra-High Frequency Spintronics
Abstract
Major Goals: The femtosecond amplifying and harmonic generation system sponsored by this award will be integrated with our existing magneto-optical characterization system and the anomalous Hall transport measurement system to provide needed capabilities and support our research programs mainly on magnetoelectronics and spinorbitronics in topological and magnetic hetero-structures and nano-devices. With the incorporation, an ultrashort laser pulse with pulse width of < 40 fs, wavelengths tunable between 400 nm and 2,600 nm, and sub-micrometer spatial scale will be achievable, accelerating the progress in basic science and practical application research of innovative THz spintronic nano-devices. Our current researches particularly aim to understand the ultra-fast magnetism, switching and high-frequency resonances at topological interfaces and in other nanomaterials and their hetero-structures. With this femtosecond amplifying and harmonics generation system, we will be enabled to study the physics and mechanisms of highly energy efficient spintronics at ultrashort temporal scales and ultrahigh frequency and at the nano-scale spatial resolution. Thus, a pioneering physical mechanism or technique could be realized to progress the development of information technology. Combining with ferrimagnetic/antiferromagnetic materials which possess high intrinsic spin precession frequency, this instrumentation especially offers an excellent opportunity to demonstrate an improvement in magnetization switch speed, which has been one of the major directions in spintronics area. This will definitely help continual advancement in high-speed spintronic devices and THz applications for information technology.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 14, 2019
- Accession Number
- AD1097216
Entities
People
- Kang L. Wang
Organizations
- University of California, Los Angeles